Valved pipe coupling



Patented Julie. 7e 1927, I

'UNITED-STATES PATENT oFF-lier..

VICTOR B'AaDINL or'V s'r.nnms, FRANCE.

'vA'Lvnn PIPE coUrLnve.

applicati@ mea rbruary s, 1925, serial No. 6,647, and in France rem-nary` e', 192e.

- -4 The object of my -inven ion is a valved l pipe coupling comprising a hreaded sleeve rscrewed on' the noseV of a valve, a. mechanism being provided for controlling theA valve from the outside. The valve is constituted by a; needlethe top' part of which shows cants whereby Vthe saidnmechani'sm 'can take vhold of it'so'as to screw it on its seat.

I The valve not being provided with a ila-'p valve,l the lattershould be if necessary in-, serted the threaded sleeve except. if a Hap-valve is already provided on one ofthe 1 parts which the valved pipe coupling con# "-section ofthe completedevice comprising the valve.

. body` wherein the Hap-valve 3 is, allowed tol Anects.v These parts can be pipe lines or else the coupling can be used for inflat-ing air tubes in which case the coupling acts as a rig. 1 is a. longi'mdina- Sensori ofthe i threaded sleeve;

Fig. 2 is anotherview. in longitudinal The pipe .coupling comprises "essentially a threadedsleeve or cylindrical body 1 provided withwan external projection 2. perpendicular or inclined with reference tofsaid move and may reston its seat 4.

A cylindrical hole of big diameter is bored along the axis of cylinder and is threaded at its higher end in A5.

Inside saidfbodyv A shaft 6 'isadapted to.

Y. rotate. Its upper part is countersunk, so as to show cants, forl instance, sixcants, as

shown, whereon a milledgknob 8 is fitted, said knob being prevented from moving longitudinally; a plug 9 upon which the lower vpart of milled knob 8 rests surrounds .shaft i 6 and is'sc'rewed into -the threaded part 5.-

the bottom of plug 9. A milled part 12.` termed an external connection surrounds the bottom of body l'roundwhichit can'rotate.

The shaft 6 shows inside the body 1 a flange 10 the'V diameter vof which is exactly such as will fit intojthe Pinterior diameter' of said body. An air-tight washer 11 is pressed between the top of flange 10 'and An internal connection. 13 turned and threadedin 14: to. correspond to the thread .on the nose of the valve islforced linside-the external connection.- The first threads are cutoff s o as to help the setting of the connection and tol shorten the duration of the screwing. A yielding .Washer 15 is pressed betweeen 'the bottom of body 1 and a' shoulder provided at the top of internal 60 flange 13. `A yielding washer 16. is insertedunder the lower ends of internal and exe;

.ternal'connections The lower partfl? fof, shaft' is countersunk in a way exactly'cor-A responding 'to the shape' of the .upper 55 polygonal part 24 of the needle 25:01c lthe .4 valve. Round the countersunk part 17 isset a slide 18 showing external-lyand round its bottom a iange 19 above which said slide is provided with holes such as 20. A compression spring'2l isplaced between the lower A e part of flange v10 on shaft dand the lian-ge 19 ofthe slide and tends to urge'. constantly said slide towards' its 1ower-positio'n. The

higher end-fof shaft-6 stops short a' -little 75 I --below the level ,of thetop surface of knob A8, whereby a. polygonal hollow 22 is formed.

The polygonal hollowsgformed by knob 8 and s id ep18 are such as will follow exactly the shape oflrespectively "shaft 6 and head so -24 of needle 25 of the valve. "Said' valve -vcomprises a body`23`which conectsa pipe line or an= air-chamber with another pipe' coupling -or a pump and the endof which `forms the nose on which is screwed the con- 85 .nection 13 of thethreaded sleeve. rlhe in- 'terior' of body is' threaded so as to lodge needle 25 the lower end of which Shows a .conical .part which'can` bear upon its seatj` 26. The Aneedle 25 is bored along'it's axis 90 A28 and the passage thus obtained stops alittle above the lower part of the needle andcommnnicates with the outer lower part of l.

same through the two lateral air-holes 29.

The above-described device works' as 95 follows: when air is to pass through the coupling, the threaded sleeve is screwed on the nose of the valve b` turning the external connection A12 which is to ;be litted tight. on ,the nose. The top polygonal part 10o` 241.` of needle 25 is set .in the polygonal nection as latter is screwed valve. When' the needle is thus raised'from its-llo seat 26, the air can pass through the couplingl and if latter is used as a pump connec-f' y tion to an air-chamber,l said air-chamber will line or air-chamber connecte-d thereto.

l so as to unscrew said needle, through the v andan external knob actuating the shaft.

When the Valve'is to be closed it is suflicient to turn the milled knob 8 in the 0pposite direction from that of the previous rotation to force the needle 25 back again on its seat.

When the above-described ycoupling is intendedfor uses such as discharging .airfrom an air chamber of a tyre wit'hy which part 23 is connected, the needle 25 being screwed 0n its seat, it is suicient to take hold 'of the top polygonal part of the needle,

hollow 22 above-shaft 6.

What I claim is: 4 A' valved pipe-coupling comprising a valve body, a threaded needle in said Valve body, a seat provided on the valve body for said needle, a passage. formed in said needle, lateral openings at the bottom of said pas. sage, a central opening at the top of same a polygonal head formed on the to-p o J needle, an internal connection screwed on the valve body, an external connection surroundingsaid internal connection, a threaded sleeve inserted vbetween the internal and external connections, a pluv screwed in said `sleeve,a chamber provided 1n same and-communicating with the exterior, a' polygonal slide fitting on the. polygonal head ofthe needle and resting on the internal connection insidethe chamber, holes in the walls of the slide, a shaft fit-ting inside the slide abovey the polygonal head and passing through the plug, a spring disposed round said shaft andI urging the 'slide downwards,

In witness whereof I have-hereunto set my hand.

VICTOR BARBIN. f 

